<?php

require_once 'HTMLPurifier/AttrTransform.php';

/**
 * Pre-transform that changes deprecated border attribute to CSS.
 */
class HTMLPurifier_AttrTransform_Border extends HTMLPurifier_AttrTransform {

	function transform($attr, $config, &$context) {
		if (!isset($attr['border'])) return $attr;
		$border_width = $this->confiscateAttr($attr, 'border');
		// some validation should happen here
		$this->prependCSS($attr, "border:{$border_width}px solid;");
		return $attr;
	}
	
}

